Some Comments on "Biological Applications of the Carbon Rod Atomizer"
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چکیده
منابع مشابه
Biological applications of the carbon rod atomizer in atomic absorption spectroscopy. 2. Determination of copper in small samples of tissue.
A simple technique is presented for the analysis for copper in small fragments of tissue. Dissolution of the tissue in concentrated nitric acid is the only preparative step required. Copper content is then determined by comparison with standards, by using the carbon rod atomizer previously described. Sample volumes of less than 2 d are used for each measurement. The method gives results that co...
متن کاملBiological applications of the carbon rod atomizer in atomic absorption spectroscopy. 1. Preliminary studies on magnesium, iron, copper, lead, and zinc in blood and plasma.
A new technique in atomic absorption spectroscopy is described, which replaces the use of a flame. Samples are injected into a cavity drilled transversely through a carbon rod, and subsequently dried, ashed, and atomized by the application of electric current. The resulting brief absorption signal is recorded and compared with standards. The procedure is particularly suitable for biological wor...
متن کاملUse of the carbon rod atomizer for direct analysis of lead in blood.
A method is described for direct analysis of lead in blood utilizing the carbon rod atomizer. Aliquots of whole blood are analyzed without pre-treatment. Resuits are comparable to those for a similar non-flame technique in which whole blood samples were prediluted with “Triton X-100.” The small sample volumes required and the minimal sample preparation further diminish the possibility of spurio...
متن کاملSome Comments on χ2 Minimisation Applications
χ2 minimisation. The determination of parameters in fits to measured data is a standard task of data analysis. The standard method of least squares is often referred to as χ2 minimisation, which is a confusion in terminology; the minimum of the least squares sum follows often, but not always, the χ2 distribution. In “χ2 minimization” used in a wide range of applications from calorimeter calibra...
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 1971
ISSN: 0009-9147,1530-8561
DOI: 10.1093/clinchem/17.12.1209